BQ24705RGER

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Battery Chemistry:	Multi-Chemistry
Number of Cells:	2 ~ 4
Current - Charging:	Constant - Programmable
Programmable Features:	--
Fault Protection:	Over Voltage
Charge Current - Max:	8A
Battery Pack Voltage:	18V (Max)
Voltage - Supply (Max):	24V
Interface:	--
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	24-VFQFN Exposed Pad
Supplier Device Package:	24-VQFN (4x4)
Base Part Number:	BQ24705

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BQ24705RGER is a device that is often described as a power management integrated circuit (PMIC) and a battery charger. This device is found in many electronic products due to its ability to optimize both energy and power management in an energy efficient, space and cost-effective manner. This article will delve into the specifics of the BQ24705RGER device and explore its applications and working principle.The BQ24705RGER is a charge-management device designed for rechargeable Li-Ion batteries. It uses highly accurate current-sense and voltage-sense circuits to safely and accurately charge the battery, reducing the risk of overcharging and improving safety. Furthermore, the BQ24705RGER is designed to be exceptionally efficient. It has a maximum efficiency of up to 96%, enabling the battery to be charged quickly in a variety of conditions.The BQ24705RGER device consists of various components, including a step-down DC/DC buck converter, the voltage and current sense circuits, the Power Path Control module, and the Charge Managemen controller. The DC/DC buck converter is used to regulate the voltage of the charging power source and to provide power to the load. The voltage and current sense circuits are used to accurately measure the voltage and current of the battery and the input power, allowing the device to safely and accurately charge the battery. The Power Path Control module enables the device to prioritize power from the charger or from the load, providing maximum flexibility. The Charge Management controller combines all of the components, intelligently distributing power and charge current based on the power needs of the system.The BQ24705RGER application field includes various consumer and industrial products, such as automotive and portable device, smart phone and tablet, laptop, IoT and battery-powered wearable device. The device is particularly useful in applications where energy efficiency is critical, such as in laptop and tablet batteries. The device can also be used to safely charge Li-Ion batteries in various industrial applications, such as solar and wind power systems or medical equipment.The working principle of the BQ24705RGER is based on the monitoring of the voltage and current of the input power source and the output battery. When the power source and battery are connected, the device will observe that the power source is providing power to the load, and thus will begin to actively regulate the output voltage of the power source. When the battery reaches a certain level of charge, the device will stop charging the battery, allowing it to maintain its current state for an extended period of time. Furthermore, the BQ24705RGER device can actively manage the power across the charge cycle to ensure maximum efficiency and safety.In conclusion, the BQ24705RGER device is a highly effective power management and battery charging device, designed for both consumer and industrial applications. The device is designed to be highly efficient, allowing the system to save energy and money, while also providing safe and accurate charge management. Furthermore, the device can provide maximum flexibility in energy delivery, allowing the user to prioritize power between the charger and the load.

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